Machining, Measurement, and Control Laboratory

Tool Path Modification for Overlapping Part of Tool Entry and Exit in End Milling
Tomoya Kudo, Soichi Ibaraki, Atsushi Matsubara

In a contour parallel toolpath used often in die machining / part machining, a hollow-shaped machining error tends to appear at the overlapping part of tool entry and exit. In this study, we suggest the modification method of the tool exit in order to reduce such a hollow-shaped machining error. By an experiment, it is shown that a machining error is decreased compared with a conventional tool but it is still not sufficiently small by this method.
Key words: End Milling, Tool path modification, Tool deflection, Cutting engagement angle.